76		Ragnarök Online (Windows, 2002)
76		RuneScape (Windows, 2001)
74		Final Fantasy VIII (Windows, 2000)
73		The Saga of Ryzom (Windows, 2004)
71		Nexus: The Kingdom of the Winds (Windows, 1998)
71		Final Fantasy IX (Windows, 2016)
70		Club Penguin Island (Windows, 2018)
64		Final Fantasy VII (Windows, 1998)
61		World of WarCraft (Windows, 2004)
60		Final Fantasy: Type-0 HD (Windows, 2015)
60		Final Fantasy III (Windows, 2014)
60		Final Fantasy XIII (Windows, 2014)
60		Mobius Final Fantasy (Windows, 2017)
60		Pirates of the Caribbean Online (Windows, 2007)
55		Wakfu (Windows, 2012)
51		EverQuest (Windows, 1999)
50		Ragnarok II: Legend of the Second (Windows, 2013)
50		Villagers & Heroes of a Mystical Land (Windows, 2011)
50		Perfect World International (Windows, 2008)
50		EverQuest II (Windows, 2004)
47		Guild Wars (Windows, 2005)
47		Dark Age of Camelot (Windows, 2001)
47		Asheron's Call 2: Fallen Kings (Windows, 2002)
45		Anarchy Online (Windows, 2001)
45		Black Desert Online (Windows, 2017)
44		Age of Conan: Hyborian Adventures (Windows, 2008)
43		Guild Wars 2 (Windows, 2012)
43		MapleStory (Windows, 2006)
42		Atlantica Online (Windows, 2008)
41		Meridian 59 (Windows, 1996)
41		Tibia (Windows, 1997)
41		Aion (Windows, 2009)
40		Final Fantasy IV (Windows, 2014)
40		Realms Online (Windows, 2011)
40		Final Fantasy IV: The After Years (Windows, 2015)
40		A Chinese Ghost Story Online (Windows, 2012)

Notes: Games similar to Final Fantasy XI Online, Games like Final Fantasy XI Online, Square Enix Co., Ltd., Sony Computer Entertainment Inc., Windows, Role-Playing, RPG, Fantasy, Anime, Manga, Massively Multiplayer, Persistent, 3rd-person, Other, PC, Game Similarities.